Be relax, grap a cup of tea/coffee and try the following solutions, I confident that 98% of no-sound problem will be gone. By the way, sorry for some dump question but those are things that can happen for everyone and me too.

# 1. the volume is locked by the software volume lock that most people aren’t aware of. You can access it by double tapping the home button and scrolling all the way to the left.

# 2. Device volume isn’t all the way down

# 3. Headphones aren’t plugged in

# 4. Make sure device not connect to the dock. Dock can prevent sound from playing.

# 5.. the system sound engine was crashed by another app. Refresh the sound engine by going into the system settings page. Under general, tap on Sounds and minimize and then maximize the volume bar.

# 6. App’s internal state is screwed up.. Restart the app by double tapping the home button for the task bar to show up.. then on the task bar, you’ll see all the apps running in the background. Hold down on an app icon for 1/2 second until a minus sign appears… tap minus sign to close the app permanently.. Then restart the app to refresh its state.

# 7. The device’s internal state is screwed up. Restart the device by holding down the home button and the power button for 10 seconds.